【正文】 erprises operating in small scale, production technology, product structure behind a single level and low technology, to resist the risk ability is poor, fluctuating prices of raw materials or products, management risk is bigger. Add small and mediumsized enterprise credit is not high, credit, bank lending nonamericans options. Many small and mediumsized enterprise information disclosure awareness, financial management level is low, the lack of objective information and transparent. In addition, individual small and mediumsized enterprise still malicious smoke escape capital, default, shell, suspended creditor bank, causing serious harm to the loss of credit funds of the small and mediumsized enterprises, the overall level of credit. (2)Some financial system is not perfect, the internal control system is not perfect, the accounting information distortion, Banks and enterprises information asymmetry, for some financing difficulty increases. Assess, some financial system is not perfect 50%, many small and mediumsized enterprise quality management, low lack of financial management knowledge, major financial decisionmaking by their heads to decide, management is very chaotic. At the same time, in order to cope with the inspection and supervision department also prepare two sets, and even more so, enterprise, to provide accurate accounting information, the bank also cannot find the reality of the enterprise to increase the risk of bank loan business. bank reasons (1) The policy system of bank loan and unbalanced directly affect the direct financing channels. Our financial institutions with four mercial bank, the banking industry and the high altitude monopoly, consistent four bank lending to stateowned enterprises only wish. This is mainly in the ownership of stateowned Banks and enterprises, the differences between the bank and the enterprise system barriers. In addition, the provisions of the state bank is overdue, bad debts of nonperforming loans, so the bank implements process for four years of small and mediumsized enterprises of a more cautious lenders nature and carefully. The securities listed in the strict request, mainboard market listed pany is mainly for large stateowned enterprises, domestic enterprises, especially the nonstate technology enterprises , the secondboard market, fund and other forms of financing is still in the early stage of building, medium and smallsized enterprises direct financing channels to achieve. (2)Information asymmetry affect the relationship between Banks and enterprises. As the provider of bank capital and can39。t attend the daily operation and management of funds, and the user (some) of information asymmetry between will bring the contradictions and problems. Usually, the small and mediumsized enterprises in the management of state owned more than bank information, therefore, has advantages of small and mediumsized enterprises in the process of contract in the event of using the capital or damage the interests of process, bank of bank risk of excessive. Due to the small and mediumsized enterprises and large enterprises in operation ability, mortgage guarantee transparency and the difference, and the size of the loan to the management cost differences, lack of small and mediumsized enterprises for domestic Banks provide more financing services. (3) Lack of small and mediumsized enterprises and the matching of the small and medium sized financial institutions. At present, the bank is still lack of organizational system for some financing service policy Banks, while China39。s bank of China on May 6, 1998 by about the improvement of financial services, support the development of national economy, the requirements of the guiding opinions of mercial bank of small and mediumsized enterprises, establish credit loans to small and mediumsized enterprise service, On June 20, 1998 by about further improve financial services for small and mediumsized enterprises, and puts forward the opinion of supporting the development of small and middlesized enterprises 8 measures, On 19 October 1998, by about expanding in small loan interest rate fluctuation range of notice, decided to expand in small loans floating range, On November 17, 1999, issued on strengthening and improving the financial services for small busine